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john Venables-kyrke

boost fluxuations in third gear

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Hi there,

I'm having a bit of trouble with the boost control on my V7 WRX.

Its fine in fourth gear, holds well and is smooth. but in third gear, it fluxuates badly.

I've tried adjusting wastegate duty, and and adjusting the turbo dynamics, but I'm a bit lost.

I've attached a log in fourth and one in third.

cheers

 

fourthgear.llg

thirdgear.llg

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Are you getting a lot of P,I, or D closed loop boost correction in third?  If so you should probably start you gear boost trim so you only effect the WGDC for 3 gear if all others are fine.

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Are you getting a lot of P,I, or D closed loop boost correction in third?  If so you should probably start you gear boost trim so you only effect the WGDC for 3 gear if all others are fine.

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